Personally I haven't had a cap related failure even though I've had a decent number of big box Amigas.
It's anecdotal evidence, but I just thought I'd point that I believe the cap issue to be real, but less rampant and devastating than searches might lead you to believe.
You only hear the complaints, never the ones that have no problems.
As for compatibility, I'm not the best to answer because I don't play stacks of games. I've never hit anything that caused me a problem though.
In the end you're using the computer you are emotionally attached to, not the one that lasts the longest, costs the least or runs the fastest.
Go with your gut on what you really want.
